Kinked air hoses, turned angle cocks, FRED, and PTC????
Author: BOB2
Date: 11-06-2018 - 10:29

Kinked air hoses and/or turned angle cocks ("bottling" the air), either through a design flaw, and/or from some act of stupidity,/or negligence, and and/or up willful misconduct may, or may not have been dealt with in the design of PTC.

It really sucks, when you set the brakes and nothin' happens, though. And, if the FRED doesn't manage to dump the "bottled/trapped" air, then you're really up s#it creek, without a paddle....

A loss of braking from such circumstances, could be potentially remedied, if the FRED is properly integrated into the PTC system,, is itself, properly designed with an adequate communications protocol to be able to query and detect FRED "failure", into the "active" part of a robust PTC architecture. Then, it could be activated, due to detecting the "conditions" programmed into the final system (like "braking failure")that would be programmed into the system, as part of a comprehensive and robust PTC system "architecture" and final design.

I have not followed that part of the "architecture" and system design for PTC, in any detail. So, it might be interesting to hear from those that have some actual experience with this, or those being trained on current PTC systems, to comment on that issue?



Subject Written By Date/Time (PST)
  NTSB preliminary report on UP rearend collision in Wyoming OPRRMS 11-05-2018 - 12:01
  Re: NTSB preliminary report on UP rearend collision in Wyoming OPRRMS 11-05-2018 - 12:15
  Re: NTSB preliminary report on UP rearend collision in Wyoming Ross Hall 11-05-2018 - 17:19
  Re: NTSB preliminary report on UP rearend collision in Wyoming Nudge 11-05-2018 - 20:04
  Re: NTSB preliminary report on UP rearend collision in Wyoming amtrakfan4ever 11-05-2018 - 20:44
  Re: NTSB preliminary report on UP rearend collision in Wyoming 1st cajon 11-05-2018 - 21:52
  Re: NTSB preliminary report on UP rearend collision in Wyoming WebDigger 11-05-2018 - 21:17
  Re: NTSB preliminary report on UP rearend collision in Wyoming SPKID 11-06-2018 - 07:26
  Re: NTSB preliminary report on UP rearend collision in Wyoming john 11-06-2018 - 08:11
  Re: NTSB preliminary report on UP rearend collision in Wyoming Espee99 11-06-2018 - 09:37
  Re: NTSB preliminary report on UP rearend collision in Wyoming Retired 11-06-2018 - 10:02
  Kinked air hoses, turned angle cocks, FRED, and PTC???? BOB2 11-06-2018 - 10:29
  Re: Kinked air hoses, turned angle cocks, FRED, and PTC???? jst3751 11-08-2018 - 09:48
  Re: Kinked air hoses, turned angle cocks, FRED, and PTC???? Dr Zarkoff 11-08-2018 - 23:39
  Re: Kinked air hoses, turned angle cocks, FRED, and PTC???? steve 11-11-2018 - 14:23


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